/* Fullscreen Toggle Button */
.fullscreen-toggle {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 9001;
    /* High z-index */
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s ease;
}

.fullscreen-toggle:hover {
    background: rgba(0, 0, 0, 0.8);
    transform: scale(1.1);
}

@media (max-width: 600px) {
    .fullscreen-toggle {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
}